The plane can fly 1352 miles if it can fly at 520 mph for 2.6 hrs.
In that time, the carrier travels 30*2.6=83.2 miles.
Let OA=x and AB=y. Then x+y=1352.
By the law of cosines:
Therefore, the total distance is:
Solve for x and y will follow.
What you need is the distance travelled by the plane from OA=x.
Once you find this, divide it by the planes rate and add it to 2:00 pm
I have included a diagram. It is not too accurate, but I hope it shows the idea.